Orthotic insert



FIG. 1 is a top plan view of an orthotic insert showing my new design;

FIG. 2 is an enlarged left side view of the orthotic insert shown in FIG. 1, the right side being a mirror image thereof; and,

FIG. 3 is a further enlarged left side perspective view of the orthotic insert shown in FIG. 1. 

CLAIM The ornamental design for an orthotic insert, as shown and described. 